You can use polythene tanks both of acid and water. Polythene tanks can be produced to 22.000 Liter. Over of 22.000 liter you can prefer poliester tanks.
Polythene tanks thickness is increased accordingly acid concentration rate. If you will stock acid with %40 concentration rate, your tank shall be thickned %50 at least.
Polythene tanks production can be provided in two alternatives. One of standard closed top and second type open top tanks. Open top tanks called as silo brine tanks